mirror of
https://github.com/alice-lg/alice-lg.git
synced 2024-05-11 05:55:03 +00:00
72 lines
1.5 KiB
Go
72 lines
1.5 KiB
Go
package main
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import (
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"fmt"
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"strconv"
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"net/http"
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)
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// Helper: Validate source Id
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func validateSourceId(id string) (int, error) {
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rsId, err := strconv.Atoi(id)
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if err != nil {
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return 0, err
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}
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if rsId < 0 {
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return 0, fmt.Errorf("Source id may not be negative")
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}
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if rsId >= len(AliceConfig.Sources) {
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return 0, fmt.Errorf("Source id not within [0, %d]", len(AliceConfig.Sources)-1)
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}
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return rsId, nil
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}
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// Helper: Validate query string
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func validateQueryString(req *http.Request, key string) (string, error) {
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query := req.URL.Query()
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values, ok := query[key]
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if !ok {
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return "", fmt.Errorf("Query param %s is missing.", key)
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}
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if len(values) != 1 {
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return "", fmt.Errorf("Query param %s is ambigous.", key)
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}
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value := values[0]
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if value == "" {
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return "", fmt.Errorf("Query param %s may not be empty.", key)
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}
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return value, nil
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}
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// Helper: Validate prefix query
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func validatePrefixQuery(value string) (string, error) {
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// We should at least provide 2 chars
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if len(value) < 2 {
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return "", fmt.Errorf("Query too short")
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}
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// Query constraints: Should at least include a dot or colon
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/* let's try without this :)
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if strings.Index(value, ".") == -1 &&
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strings.Index(value, ":") == -1 {
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return "", fmt.Errorf("Query needs at least a ':' or '.'")
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}
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*/
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return value, nil
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}
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// Get pagination parameters: limit and offset
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// Refer to defaults if none are given.
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func validatePaginationParams(req *http.Request, limit, offset int) (int, int, error) {
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return limit, offset, nil
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}
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